Milk can



Nov. 27 1923.

J. OBRIEN MILK CAN Filed May 6, 1922 I I n m m War I A s i h Y 3 W 9 M2 .w u, \2 Z 6 H Patented Nov. 27, 1923.

; FFICE.

JOHN OBRIEN, OF ST. PAUL, MINNESOTA.

MILK CAN.

Application filed May 6, 1922. Serial No. 559,070.

To all whom it may concern:

Be it known that 1, JOHN OBRIEN, a citizen of the United States, residin at St. Paul, in the county of Ramsey and tate of Minnesota, have invented a new and useful Milk Can, of which the following is a specification.

This invention relates to improvements in milk-cans and consists of the specific construction hereinafter described and claimed, reference being had to the accompanying drawing, in which Fig. 1 is a top view of a milk-can embodying my improvements.

Fig. 2 is a vertical section through such can on the line 22 in Fig. 1.

Fig. 3 is a section on line 3-3 in Fig. 2 and is also a bottom view of the inner can member, the can being composed of an inner and an outer concentric member.

Referring to the drawing by reference numerals, the can is of the ordinary type and size for shipping and keeping milk in quantities of several gallons in one container, the bulk and weight as well as economical construction of which are therefore to be 'considecred in connection with the structure of the can.

The can body is composed of an inner cylindrical member 4, and an outer member or shell 5 with an intervening concentric space 6, both members having their upper ends contracted at 7 and their top edges 8, 9, flared upward and outward and secured one above the other to the outer side of the slightly flaring neck 10 having its upper end still more flared to form a mouth 11.

Fitting in said neck and resting partly in the mouth 11 is a cover 12 having a handle 13 and a large internal space 14 and a screw plug 14 The upper end of the outer memher is provided with two opposite handles 15 by which to handle and carry the can.

The outer member 5 is provided with a sheet metal bottom 16 which may be secured by rivets 17, and has a fixed bushing 18 with a screw plug 19 therein. The inner member 4 has a similar bottom 20 with a downwardly turned rim 21 secured by rivets 22.

Fitting within the rim 21 is a spider 23 which by rivets 24 is secured upon the bottom 16, and is formed with a central clearance 25 adjacent the plug 19. The spider is also provided with notches 2627, connecting the central space 25 with all the spaces between the radial arms 28 of the spider. The spider also has notches 29 registering with notches 30 in the lower edge of the body member 4 so as to connect the space 6 with the spaces in the spider and all the spaces with the outlet closed by plug 19. To make the notches 29 and 30 register it is only necessary to bring them in alignment and then either secure the spider by rivets 24 after the collars 8 and 9 have been secured, or secure the collars after the spider has been fixed on bottom 16, or in any other suitable way.

When the article is completed the air in the space 14 in the cover is extracted through the hole having the plug 14 and all air between the body members 4, 5, and their bottoms 1620 is extracted through the hole having plug 19. The skeleton spider 23 will resist the atmospheric pressure upon the bottom 20 and up under bottom 16 so as to preserve their fiat parallel positions, while the body members 4 and 5 being cylindrical will withstand the air pressure without any bracing.

Thezcan is then ready to receive milk and will preserve the temperature of the same by the double body and especially by the vacuum spaces surrounding the milk in all direction, to prevent heat passing to or from the milk. The cover 12 may be secured or even sealed in place by any suitable means, or in many cases it is sufficiently held by the friction due toits tapered form in the neck 10.

What I claim is:

1. A milk-can comprising two cylindrical, concentrically spaced body sections, one smaller than the other, each closed by a bottom, a spider spacing and propping the two bottoms apart and having notches and clearances connecting the spaces between the bottoms with the space between the cylindrical members, said lower bottom having an aperture through which to extract the air from the spaces and thus create a vacuum therein, said smaller body section having in its lower end notches in radial line with some of the notches in the spider.

2. The structure specified in claim 1, said spider being fixed to the lower bottom and contracted at its upper end and formed with fitting Within a depending peripheral flange a collar, said collars being secured one above of the upper bottom. the other about the outside of said neck, and 110 3. The structure specified in claim 2, said a cover closing the neck.

can having "a flaring top or mouth with a lin'testimony wher'eof I affix my signatur cylindrical neck depending therefrom and said cylindrical body members being each JOHN OBRIEN. 

